Warning: Permanently added '10.128.0.77' (ED25519) to the list of known hosts. 2026/06/25 00:24:02 parsed 1 programs 2026/06/25 00:24:02 serving rpc on tcp://46757 [ 19.696209][ T24] audit: type=1400 audit(1782347042.760:64): avc: denied { node_bind } for pid=287 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 19.717067][ T24] audit: type=1400 audit(1782347042.760:65): avc: denied { create } for pid=287 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 19.736834][ T24] audit: type=1400 audit(1782347042.760:66): avc: denied { module_request } for pid=287 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 20.295025][ T24] audit: type=1400 audit(1782347043.360:67): avc: denied { mounton } for pid=293 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 20.296048][ T293] cgroup: Unknown subsys name 'net' [ 20.317683][ T24] audit: type=1400 audit(1782347043.360:68): avc: denied { mount } for pid=293 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 20.344912][ T24] audit: type=1400 audit(1782347043.390:69): avc: denied { unmount } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 20.345075][ T293] cgroup: Unknown subsys name 'devices' [ 20.492180][ T293] cgroup: Unknown subsys name 'hugetlb' [ 20.497772][ T293] cgroup: Unknown subsys name 'rlimit' [ 20.699361][ T24] audit: type=1400 audit(1782347043.760:70): avc: denied { setattr } for pid=293 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 20.722592][ T24] audit: type=1400 audit(1782347043.760:71): avc: denied { create } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 20.738781][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 20.742939][ T24] audit: type=1400 audit(1782347043.760:72): avc: denied { write } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 20.771701][ T24] audit: type=1400 audit(1782347043.760:73): avc: denied { read } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 20.792002][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 21.147051][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 21.157632][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 21.597513][ T345] bridge0: port 1(bridge_slave_0) entered blocking state [ 21.604598][ T345] bridge0: port 1(bridge_slave_0) entered disabled state [ 21.612004][ T345] device bridge_slave_0 entered promiscuous mode [ 21.618774][ T345] bridge0: port 2(bridge_slave_1) entered blocking state [ 21.625817][ T345] bridge0: port 2(bridge_slave_1) entered disabled state [ 21.633106][ T345] device bridge_slave_1 entered promiscuous mode [ 21.666015][ T345] bridge0: port 2(bridge_slave_1) entered blocking state [ 21.673072][ T345] bridge0: port 2(bridge_slave_1) entered forwarding state [ 21.680291][ T345] bridge0: port 1(bridge_slave_0) entered blocking state [ 21.687309][ T345] bridge0: port 1(bridge_slave_0) entered forwarding state [ 21.702280][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 21.709856][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 21.717450][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 21.726726][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 21.734945][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 21.741995][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 21.750316][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 21.758675][ T49] bridge0: port 2(bridge_slave_1) entered blocking state [ 21.765724][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state [ 21.776840][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 21.786027][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 21.798458][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 21.809102][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 21.817549][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 21.825196][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 21.833307][ T345] device veth0_vlan entered promiscuous mode [ 21.842683][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 21.851522][ T345] device veth1_macvtap entered promiscuous mode [ 21.860167][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 21.870104][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/06/25 00:24:05 executed programs: 0 [ 22.192700][ T364] bridge0: port 1(bridge_slave_0) entered blocking state [ 22.199739][ T364] bridge0: port 1(bridge_slave_0) entered disabled state [ 22.207153][ T364] device bridge_slave_0 entered promiscuous mode [ 22.214109][ T364] bridge0: port 2(bridge_slave_1) entered blocking state [ 22.221177][ T364] bridge0: port 2(bridge_slave_1) entered disabled state [ 22.228440][ T364] device bridge_slave_1 entered promiscuous mode [ 22.262875][ T364] bridge0: port 2(bridge_slave_1) entered blocking state [ 22.269910][ T364] bridge0: port 2(bridge_slave_1) entered forwarding state [ 22.277172][ T364] bridge0: port 1(bridge_slave_0) entered blocking state [ 22.284228][ T364] bridge0: port 1(bridge_slave_0) entered forwarding state [ 22.299458][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 22.307149][ T349] bridge0: port 1(bridge_slave_0) entered disabled state [ 22.314530][ T349] bridge0: port 2(bridge_slave_1) entered disabled state [ 22.342200][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 22.350292][ T349] bridge0: port 1(bridge_slave_0) entered blocking state [ 22.357334][ T349] bridge0: port 1(bridge_slave_0) entered forwarding state [ 22.365016][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 22.373258][ T349] bridge0: port 2(bridge_slave_1) entered blocking state [ 22.380261][ T349] bridge0: port 2(bridge_slave_1) entered forwarding state [ 22.387602][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 22.395494][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 22.406597][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 22.423189][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 22.432187][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 22.439492][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 22.448119][ T364] device veth0_vlan entered promiscuous mode [ 22.457249][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 22.465998][ T364] device veth1_macvtap entered promiscuous mode [ 22.474666][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 22.484726][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 22.505482][ T401] ================================================================== [ 22.513673][ T401] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 [ 22.520333][ T401] Write of size 8 at addr ffff88812648c550 by task syz.2.17/401 [ 22.527935][ T401] [ 22.530253][ T401] CPU: 1 PID: 401 Comm: syz.2.17 Not tainted syzkaller #0 [ 22.537339][ T401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 22.547367][ T401] Call Trace: [ 22.550633][ T401] __dump_stack+0x21/0x24 [ 22.555033][ T401] dump_stack_lvl+0x1a7/0x208 [ 22.559704][ T401] ? show_regs_print_info+0x18/0x18 [ 22.564887][ T401] ? thaw_kernel_threads+0x220/0x220 [ 22.570163][ T401] ? debug_smp_processor_id+0x17/0x20 [ 22.575516][ T401] print_address_description+0x7f/0x2c0 [ 22.581040][ T401] ? mutex_lock+0x85/0xf0 [ 22.585349][ T401] kasan_report+0x100/0x140 [ 22.589825][ T401] ? mutex_lock+0x85/0xf0 [ 22.594127][ T401] kasan_check_range+0x249/0x2a0 [ 22.599037][ T401] __kasan_check_write+0x14/0x20 [ 22.603944][ T401] mutex_lock+0x85/0xf0 [ 22.608068][ T401] ? mutex_trylock+0xb0/0xb0 [ 22.612628][ T401] ? l2tp_session_put+0xb2/0x1a0 [ 22.617533][ T401] ? l2tp_session_delete+0x3a9/0x4a0 [ 22.622786][ T401] pppol2tp_release+0x178/0x2b0 [ 22.627606][ T401] sock_close+0xb8/0x200 [ 22.631819][ T401] ? sock_mmap+0xa0/0xa0 [ 22.636031][ T401] __fput+0x2dc/0x730 [ 22.639987][ T401] ____fput+0x15/0x20 [ 22.643949][ T401] task_work_run+0x127/0x190 [ 22.648511][ T401] exit_to_user_mode_loop+0xcb/0xe0 [ 22.653688][ T401] exit_to_user_mode_prepare+0x76/0xa0 [ 22.659120][ T401] syscall_exit_to_user_mode+0x1d/0x40 [ 22.664552][ T401] do_syscall_64+0x3d/0x40 [ 22.668954][ T401] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 22.674832][ T401] RIP: 0033:0x7fcfff2b9e59 [ 22.679233][ T401] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 22.698997][ T401] RSP: 002b:00007fffc2ac2bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 22.707390][ T401] RAX: 0000000000000000 RBX: 00007fffc2ac2ca0 RCX: 00007fcfff2b9e59 [ 22.715341][ T401] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 22.723323][ T401] RBP: 00000000000057d3 R08: 0000000000000001 R09: 0000000000000000 [ 22.731270][ T401] R10: 0000001b32b20000 R11: 0000000000000246 R12: 0000000000000000 [ 22.739225][ T401] R13: 00007fcfff532fac R14: 00007fcfff532fa8 R15: 00007fcfff532fa0 [ 22.747183][ T401] [ 22.749487][ T401] Allocated by task 401: [ 22.753708][ T401] __kasan_kmalloc+0xd4/0x100 [ 22.758379][ T401] __kmalloc+0x19f/0x330 [ 22.762597][ T401] l2tp_session_create+0x39/0xb60 [ 22.767596][ T401] pppol2tp_connect+0xbf5/0x1640 [ 22.772509][ T401] __sys_connect+0x3ce/0x450 [ 22.777100][ T401] __x64_sys_connect+0x7a/0x90 [ 22.781838][ T401] do_syscall_64+0x31/0x40 [ 22.786224][ T401] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 22.792107][ T401] [ 22.794409][ T401] Freed by task 401: [ 22.798278][ T401] kasan_set_track+0x4a/0x70 [ 22.802839][ T401] kasan_set_free_info+0x23/0x40 [ 22.807748][ T401] ____kasan_slab_free+0x125/0x160 [ 22.812833][ T401] __kasan_slab_free+0x11/0x20 [ 22.817597][ T401] slab_free_freelist_hook+0xc5/0x190 [ 22.822959][ T401] kfree+0xc0/0x270 [ 22.826744][ T401] l2tp_session_put+0xb2/0x1a0 [ 22.831479][ T401] l2tp_session_delete+0x3a9/0x4a0 [ 22.836573][ T401] pppol2tp_release+0x169/0x2b0 [ 22.841400][ T401] sock_close+0xb8/0x200 [ 22.845625][ T401] __fput+0x2dc/0x730 [ 22.849598][ T401] ____fput+0x15/0x20 [ 22.853553][ T401] task_work_run+0x127/0x190 [ 22.858130][ T401] exit_to_user_mode_loop+0xcb/0xe0 [ 22.863298][ T401] exit_to_user_mode_prepare+0x76/0xa0 [ 22.868728][ T401] syscall_exit_to_user_mode+0x1d/0x40 [ 22.874162][ T401] do_syscall_64+0x3d/0x40 [ 22.878584][ T401] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 22.884446][ T401] [ 22.886756][ T401] The buggy address belongs to the object at ffff88812648c400 [ 22.886756][ T401] which belongs to the cache kmalloc-512 of size 512 [ 22.900787][ T401] The buggy address is located 336 bytes inside of [ 22.900787][ T401] 512-byte region [ffff88812648c400, ffff88812648c600) [ 22.914035][ T401] The buggy address belongs to the page: [ 22.919662][ T401] page:ffffea0004992300 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12648c [ 22.930055][ T401] head:ffffea0004992300 order:2 compound_mapcount:0 compound_pincount:0 [ 22.938361][ T401] flags: 0x4000000000010200(slab|head) [ 22.943793][ T401] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 [ 22.952351][ T401] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 22.960902][ T401] page dumped because: kasan: bad access detected [ 22.967286][ T401] page_owner tracks the page as allocated [ 22.972984][ T401] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 364, ts 22495718847, free_ts 22493472241 [ 22.993357][ T401] prep_new_page+0x176/0x190 [ 22.997922][ T401] get_page_from_freelist+0x225f/0x23f0 [ 23.003444][ T401] __alloc_pages_nodemask+0x29a/0x640 [ 23.008787][ T401] new_slab+0x84/0x3f0 [ 23.012831][ T401] ___slab_alloc+0x2f8/0x4c0 [ 23.017395][ T401] __slab_alloc+0x63/0xa0 [ 23.021698][ T401] kmem_cache_alloc_trace+0x1a8/0x2e0 [ 23.027044][ T401] rtnl_newlink+0x14b/0x1830 [ 23.031604][ T401] rtnetlink_rcv_msg+0x9e9/0xca0 [ 23.036601][ T401] netlink_rcv_skb+0x1e9/0x430 [ 23.041344][ T401] rtnetlink_rcv+0x1c/0x20 [ 23.045740][ T401] netlink_unicast+0x86c/0xa30 [ 23.050482][ T401] netlink_sendmsg+0x949/0xb70 [ 23.055221][ T401] __sys_sendto+0x467/0x620 [ 23.059694][ T401] __x64_sys_sendto+0xe5/0x100 [ 23.064427][ T401] do_syscall_64+0x31/0x40 [ 23.068810][ T401] page last free stack trace: [ 23.073549][ T401] __free_pages_ok+0x80b/0x830 [ 23.078300][ T401] __free_pages+0xd8/0x390 [ 23.082684][ T401] kfree+0x1e4/0x270 [ 23.086556][ T401] tipc_nametbl_stop+0x120b/0x1270 [ 23.091636][ T401] tipc_exit_net+0x99/0x150 [ 23.096115][ T401] cleanup_net+0x589/0xb80 [ 23.100502][ T401] process_one_work+0x6fd/0xbc0 [ 23.105327][ T401] worker_thread+0xa8e/0x13c0 [ 23.109975][ T401] kthread+0x324/0x3b0 [ 23.114021][ T401] ret_from_fork+0x1f/0x30 [ 23.118475][ T401] [ 23.120778][ T401] Memory state around the buggy address: [ 23.126424][ T401] ffff88812648c400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.134457][ T401] ffff88812648c480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.142490][ T401] >ffff88812648c500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.150525][ T401] ^ [ 23.157171][ T401] ffff88812648c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.165202][ T401] ffff88812648c600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.173231][ T401] ================================================================== [ 23.181260][ T401] Disabling lock debugging due to kernel taint